501946447 has 2 divisors, whose sum is σ = 501946448. Its totient is φ = 501946446.

The previous prime is 501946441. The next prime is 501946469. The reversal of 501946447 is 744649105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501946447 - 2¹⁵ = 501913679 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501946441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250973223 + 250973224.

It is an arithmetic number, because the mean of its divisors is an integer number (250973224).

Almost surely, 2^501946447 is an apocalyptic number.

501946447 is a deficient number, since it is larger than the sum of its proper divisors (1).

501946447 is an equidigital number, since it uses as much as digits as its factorization.

501946447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 501946447 is about 22404.1613768514. The cubic root of 501946447 is about 794.7291230685.

The spelling of 501946447 in words is "five hundred one million, nine hundred forty-six thousand, four hundred forty-seven".